FR2856476B1 - HIGH-PRECISION OPTICAL ENCODING SYSTEM AND HIGH PRECISION ENCODING METHOD - Google Patents

HIGH-PRECISION OPTICAL ENCODING SYSTEM AND HIGH PRECISION ENCODING METHOD

Info

Publication number
FR2856476B1
FR2856476B1 FR0307405A FR0307405A FR2856476B1 FR 2856476 B1 FR2856476 B1 FR 2856476B1 FR 0307405 A FR0307405 A FR 0307405A FR 0307405 A FR0307405 A FR 0307405A FR 2856476 B1 FR2856476 B1 FR 2856476B1
Authority
FR
France
Prior art keywords
precision
encoding
encoding method
encoding system
precision optical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
FR0307405A
Other languages
French (fr)
Other versions
FR2856476A1 (en
Inventor
Daniel Gaumet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CODECHAMP SA
Original Assignee
CODECHAMP SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CODECHAMP SA filed Critical CODECHAMP SA
Priority to FR0307405A priority Critical patent/FR2856476B1/en
Priority to EP04291493.7A priority patent/EP1489388B1/en
Publication of FR2856476A1 publication Critical patent/FR2856476A1/en
Application granted granted Critical
Publication of FR2856476B1 publication Critical patent/FR2856476B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24471—Error correction
    • G01D5/24476—Signal processing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
    • G01D18/001—Calibrating encoders
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24409—Interpolation using memories

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
FR0307405A 2003-06-19 2003-06-19 HIGH-PRECISION OPTICAL ENCODING SYSTEM AND HIGH PRECISION ENCODING METHOD Expired - Lifetime FR2856476B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0307405A FR2856476B1 (en) 2003-06-19 2003-06-19 HIGH-PRECISION OPTICAL ENCODING SYSTEM AND HIGH PRECISION ENCODING METHOD
EP04291493.7A EP1489388B1 (en) 2003-06-19 2004-06-15 High precision optical encoding system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0307405A FR2856476B1 (en) 2003-06-19 2003-06-19 HIGH-PRECISION OPTICAL ENCODING SYSTEM AND HIGH PRECISION ENCODING METHOD

Publications (2)

Publication Number Publication Date
FR2856476A1 FR2856476A1 (en) 2004-12-24
FR2856476B1 true FR2856476B1 (en) 2006-10-06

Family

ID=33396808

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0307405A Expired - Lifetime FR2856476B1 (en) 2003-06-19 2003-06-19 HIGH-PRECISION OPTICAL ENCODING SYSTEM AND HIGH PRECISION ENCODING METHOD

Country Status (2)

Country Link
EP (1) EP1489388B1 (en)
FR (1) FR2856476B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2966240B1 (en) * 2010-10-15 2012-11-09 Eurofarad METHOD FOR DETECTING A DYSFUNCTION OF AT LEAST ONE PHOTORECEPTOR EQUIPPED WITH AN ABSOLUTE ENCODER TYPE ANGULAR POSITION SENSOR
DE102011079961A1 (en) * 2011-07-28 2013-01-31 Dr. Johannes Heidenhain Gmbh Apparatus and method for angle measurement

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2501227B2 (en) * 1988-05-30 1996-05-29 ファナック株式会社 Absolute position encoder
BR9408119A (en) * 1993-12-06 1997-08-05 Analogic Corp Apparatus for measuring one or more geometric and positional kinematic parameters of a rotation device Apparatus for measuring any lateral displacement of a geometric center of a rotation device Apparatus for substantially measuring the instantaneous angular position of a rotation device for a fixed reference point of the apparatus device for substantially measuring the instantaneous angular velocity of a rotating device as a rotating device rotates about an axis of rotation apparatus including a rotating object mounted on the support devices for rotating about an axis rotational system x-ray tomography method for determining parameters associated with the movement of a circular disk mounted on the support devices for rotation in a plane of rotation around a rotational axis
DE69727368T2 (en) * 1996-11-11 2004-07-01 Fanuc Ltd. INTERPOLATION CIRCUIT FOR ENCODING DEVICE
DE10034733B4 (en) * 1999-08-02 2004-07-08 Siemens Ag Determination method for a position signal and / or for correction values for measurement signals
US6356219B1 (en) * 2001-03-05 2002-03-12 Aerotech, Inc. Calibrated encoder multiplier
GB0125286D0 (en) * 2001-10-19 2001-12-12 Renishaw Plc Interface for position determining device

Also Published As

Publication number Publication date
EP1489388B1 (en) 2016-10-26
EP1489388A1 (en) 2004-12-22
FR2856476A1 (en) 2004-12-24

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